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Electric Circuits II (Tyre - Section B - 262073) Fall 2025 - 2026
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A balanced three-phase source serves the following loads:
Load 1: 48 kVA at 0.9 pf lagging
Load 2: 24 kVA at 0.75 pf lagging
The line voltage at the load is 208 Vrms at 60 Hz. Determine the power factor at the load.
Three loads are connected in parallel cross a 1-phase, 1200 Vrms, 50 Hz supply.
Load 1: Capacitive load, 10 kW and 40 kVAR
Load 2: Inductive load, 35 kW and 120 kVAR
Load 3: Resistive load of 15 kW
What is the total complex power of the circuit?
The reactive power Q = 800 VAR, the reactive factor rf = 0.45 (leading).
The complex power is: